APPENDIX 211 



another that has been recently damaged by fire, and note the 

 injury to the trees and the forest floor. 



XVI. Make a list of trees found growing in bottom lands, 

 on lower and upper slopes and on ridges. 



METHOD OF FINDING THE AREA OF A WOODLOT BY THE USE 

 OF AN ORDINARY COMPASS 



Farm woodlots are usually more or less rectangular in out- 

 line or at least have straight sides, and areas should not be 

 difficult to find. There are many ways of finding areas of 

 tracts of land. The one described is one of the simplest 

 methods and can be carried out with the ordinary compass 

 reading from o to 360 degrees, that can be purchased for a 

 small sum. A tape for measuring the sides of the woodlot 

 is also necessary, although a stout string or a wire carefully 

 measured can be used. Although a simple method, the one 

 described, if carried out carefully, will give very accurate 

 results. 



The compass is set up at one corner of the woodlot (marked 

 A in the diagram) so that the direction of one side can be 

 seen. It is not necessary that the compass should set exactly 

 on the corner. It should be placed where the direction of the 

 side of the woodlot can be seen. The compass is for giving 

 the direction of the side of the woodlot and nothing more. 

 The compass should be set level, with the hand or pointer 

 when at rest lying exactly over the point marked north. It 

 will be found to be more convenient to set the compass on 

 the ground rather than on a post or other elevation. 



A string is now stretched over the compass in the direction 

 of the side of the woodlot to be measured (AB~], so that it 

 passes directly over the center of the compass or the pin hold- 

 ing the needle. With an assistant holding the end of the 

 string in the direction of the line to be run, and the other 

 end held a short distance the other side of the compass, the 

 direction of the side of the woodlot can be judged accurately. 



